Kelsey Grammer has vowed to be at the January parole hearing for the man who killed his younger sister in Colorado Springs in 1975 if the man, Freddie Lee Glenn, asks to be released from prison.

Glenn was convicted of murder, second-degree kidnapping and armed robbery for the slaying of 18-year-old Karen Grammer in 1976. He is serving three life sentences with the possibility for parole.

He became eligible for parole in October 2006, but waived the hearing, Katherine Sanguinetti, a spokeswoman for the Colorado Department of Corrections, told the Rocky Mountain News.

“He chose not to go before a parole board and ask for parole,” she said.

Glenn, 50, has until December to waive or pursue the January hearing, Sanguinetti said.

Grammer, who is registered as a victim in his sister’s case, “has a right to go before the parole board and give his side of the story … give his feelings on it, what he thinks.”

“Recently, I got news that the man who did this to Karen is now eligible for parole,” Grammer, 52, told Parade magazine. “There is a hearing sometime later this year that I will attend. I am angry about him. I never had the opportunity to speak for my sister before. I will now.”